mariadb

Commit Graph

Author	SHA1	Message	Date
Vladislav Vaintroub	1c95254523	Fix check_table_file_presence: On Windows, do not attempt access() for special device names like CON, PRN etc. access() would return 0, this does not mean that fiile with this name exists.	15 years ago
Oleksandr Byelkin	84505e6e3a	db_name can change case, so we need copy of it for case insensitive FS.	15 years ago
Michael Widenius	4c81cef75d	Fixed bug when accessing wrong decimal value in dynamic string (Fixed lp:781233) Store decimal 0.0 in zero bytes in dynamic strings. mysqltest: Don't ignore error from mysql_stmt_fetch; This could cause rows to be missing from log when running with --ps-protocol Fixed wrong result length for CAST(... as TIME) client/mysqltest.cc: Don't ignore error from mysql_stmt_fetch; This could cause rows to be missing from log when running with --ps-protocol libmysql/libmysql.c: The max length for a TIME column is 17, not 15. mysql-test/r/dyncol.result: More tests mysql-test/t/dyncol.test: More tests mysys/ma_dyncol.c: Check content of decimal value on read and store to not get assert in decimal_bin_size(). Store decimal 0.0 in zero bytes in dynamic strings. This also solves a problem where decimal 0 had different internal representations. sql-common/my_time.c: Fixed DBUG_PRINT sql/item_timefunc.h: Fixed wrong result length for CAST(... as TIME). This was the cause of failures in buildbot when doing cast(... as time); sql/protocol.cc: More DBUG_PRINT	15 years ago
unknown	18d08eeacc	Post review fixes of MWL#148 (moving max/min optimization in optimize phase). sql/item_subselect.cc: Cleanup. Comments added. sql/item_subselect.h: Cleanup. sql/mysql_priv.h: Comments added. sql/opt_subselect.cc: The function renamed and turned to method. Comments added. sql/opt_subselect.h: The function turned to method of JOIN. sql/sql_select.cc: Comment added. The function turned to method. sql/sql_select.h: The function turned to method.	15 years ago
unknown	520927a7df	Bugfix: New table creation/renaming block added if old encoded table present. mysql-test/r/create.result: test of renaming mysql-test/r/upgrade.result: Now such behaviour prohibited to avoid problems. mysql-test/t/create.test: test of renaming mysql-test/t/upgrade.test: Now such behaviour prohibited to avoid problems. sql/mysql_priv.h: Function to test table name presence added. sql/sql_rename.cc: Rename fixed. sql/sql_table.cc: Function to test table name presence added. Create fixed.	15 years ago
Michael Widenius	8d52c2cffe	Fixed compiler warnings and test cases problems found by buildbot mysql-test/r/dyncol.result: Updated test results mysql-test/r/index_intersect.result: Updated results mysql-test/r/index_intersect_innodb.result: Updated results mysql-test/t/dyncol.test: Added replace_result for floating point results that are different on windows Added round() around a result to get same result on all platforms. mysql-test/t/index_intersect.test: Added replace_result to fix that index_merge may put key names in different order. mysys/ma_dyncol.c: Fixed compiler warnings on Solaris sql/key.cc: Fixed compiler warnings on Solaris sql/mysqld.cc: Fixed compiler warning on windows support-files/compiler_warnings.supp: Suppressed an unintersting warning on Solaris	15 years ago
Michael Widenius	052d1bfb1a	Fixed all reported bugs for dynamic columns. Bugs fixed: - Added automatic detection of unsigned arguments to COLUMN_CREATE() - If string length is not know for COLUMN_GET() use MAX_DYNAMIC_COLUMN_LENGTH instead of MAX_FIELD_BLOBLENGTH - null_value flag was not propery reset for COLUMN_LIST() and COLUMN_CREATE() which could lead to crashes later: - lp:778905 Assertion `value->year <= 9999' failed in dynamic_column_date_store - lp:778912 Assertion `field_pos < field_count' failed in Protocol_text::store in maria-5.3-mwl34 include/ma_dyncol.h: Added define for max dynamic column length. mysql-test/r/cast.result: Added test of cast big unsigned int to signed (this test case was missing) mysql-test/r/dyncol.result: Added tests from reported bugs Added testing of automatic store of signed/unsigned integers mysql-test/t/cast.test: Added test of cast big unsigned int to signed (this test case was missing) mysql-test/t/dyncol.test: Added tests from reported bugs Added testing of automatic store of signed/unsigned integers sql/item.cc: Added assert to catch cases where null_value is not set properly sql/item_strfunc.cc: Added automatic detection of unsigned arguments to COLUMN_CREATE() COLUMN_GET() returned wrong value for illegal strings which lead to assert later null_value flag was not propery reset for COLUMN_LIST() and COLUMN_CREATE() which could lead to crashes later. sql/item_strfunc.h: If string length is not know for COLUMN_GET() use MAX_DYNAMIC_COLUMN_LENGTH	15 years ago
Sergey Petrunya	30575353b6	BUG#779885: Crash in eliminate_item_equal with materialization=on in maria-5.3 - In eliminate_item_equal(), we could end up in a situation where: = The multiple equality has a constant C1 (and so it is the "head item") = The join order was such that we've generated "sj_inner_table1=C1" equality, and now are looking to generate "sj_inner_table2_=..." equality. When looking for what should be the other member of equality, we run Item *head_item= current_sjm? current_sjm_head: head; which sees current_sjm!=NULL, and takes current_sjm_head (which is NULL because the constant C1 is the head for all cases). - Fixed in a trivial way: take current_sjm_head if we don't have constant.	15 years ago
Sergei Golubchik	e343a2c134	small enhancement of the create table options feature: no unnecessary casting from void*, more type safety. typos fixed.	15 years ago
Sergey Petrunya	f34b421839	Code cleanup, added comments.	15 years ago
Sergey Petrunya	8d29fddb97	BUG#780359: Crash with get_fanout_with_deps in maria-5.3-mwl90 - Handle the case of degenerate joins. When join has impossible WHERE clause, a number of its members, including JOIN::map2table, are not initialized. Do not try accessing them, detect degenerate joins early.	15 years ago
Sergey Petrunya	70952a554d	MWL#90: Non-merged semi-joins - Fix trivial bugs in post-GROUP-BY output cardinality calculations - Add testcases	15 years ago
unknown	e2ff288531	Fix buildbot failure in rpl_stop_slave.test. Problem was setting DEBUG_SYNC twice in a row too fast in the test case; this could cause the second setting to override the first before the code had time to react to the first, causing the signal to get lost. Fixed by waiting for the code to receive the first signal before overwriting it in the test case.	15 years ago
Michael Widenius	8882d71f3f	Make event stop code even more robust. (Test failed if we added my_sleep(200000) in event_queue::cond_wait() just before pthread_cond_wait(); Not likely scenario but better to get that fixed too)	15 years ago
Michael Widenius	4cb68c0e89	mysqltest: Write command to be executed to the log BEFORE executing the command. Fixed race condition in event that could cause hang when stopping event scheduler with SET GLOBAL event_scheduler=OFF client/mysqltest.cc: Write command to be executed to the log BEFORE executing the command. This makes it easier to debug crashes as the log will contain the fatal command. mysql-test/r/mysqltest.result: Updated results (we now get more things logged) sql/event_queue.cc: Fixed race condition in event that could cause hang when stopping event scheduler with SET GLOBAL event_scheduler=OFF. The reason was that a kill signal could be sent between last check of thd->killed and before thd->enter_cond() in which case the signal would be missed and we would be stuck in Event_scheduler::stop() forever.	15 years ago
Sergey Petrunya	76fd8c1c2f	Change "disable semi-joins in presense of outer joins" check to actually check for outer joins (and not for any "t1 SOME_JOIN t2 ON cond" syntax).	15 years ago
Sergey Petrunya	524e6aad73	MWL#90: Non-merged semi-joins - Take into account that grouping or aggregates decrease join output cardinality. (First code, can't make use of index statistics yet)	15 years ago
Michael Widenius	e843297d12	Fixed compiler warnings	15 years ago
Michael Widenius	5ab92b1f85	Adding support for Dynamic columns (WL#34): - COLUMN_CREATE(column_nr, value, [column_nr,value]...) - COLUMN_ADD(blob,column_nr, value, column_nr,value]...) - COLUMN_DELETE(blob, column_nr, column_nr...) - COLUMN_EXISTS(blob, column_nr) - COLUMN_LIST(blob, column_nr) - COLUMN_GET(string, column_nr AS type) Added cast(X as DOUBLE) and cast(x as INT) Better warning and error messages for wrong cast's Created some sub functions to simplify and reuse code. Added a lot of conversation functions with error/warnings for what went wrong. Fixed some issues when casting time to datetime. Added functions to dynamic strings and Strings to allow one to move a string buffer from dynamic strings to String (to save malloc+ copy) Added dynamic columns library to libmysqlclient include/Makefile.am: Added ma_dyncol.h include/decimal.h: Added 'const' to arguments for some functions. include/my_sys.h: Added dynstr_reassociate() include/my_time.h: Added TIME_SUBSECOND_RANGE Added double_to_datetime() Added flag argument to str_to_time() libmysql/CMakeLists.txt: Added mysys/ma_dyncol.c libmysql/Makefile.shared: Added ma_dyncol libmysql/libmysql.c: Added argument to str_to_time() mysql-test/r/bigint.result: Better error messages mysql-test/r/cast.result: Better warning and error messages A lot of new cast() tests mysql-test/r/func_math.result: Better warning messages mysql-test/r/func_str.result: Better warning messages mysql-test/r/func_time.result: Better warning messages mysql-test/r/sp-vars.result: Better warning messages mysql-test/r/strict.result: Better warning messages New test result mysql-test/r/type_newdecimal.result: Better warning messages mysql-test/r/warnings.result: Better warning messages mysql-test/suite/funcs_1/r/innodb_func_view.result: Updated results after better cast warnings mysql-test/suite/funcs_1/r/memory_func_view.result: Updated results after better cast warnings mysql-test/suite/funcs_1/r/myisam_func_view.result: Updated results after better cast warnings mysql-test/suite/optimizer_unfixed_bugs/t/bug43448.test: Added begin...commit to speed up test. mysql-test/suite/parts/inc/part_supported_sql_funcs_delete.inc: Added begin...commit to speed up test. mysql-test/suite/parts/inc/partition_supported_sql_funcs.inc: Added begin...commit to speed up test. mysql-test/suite/parts/r/part_supported_sql_func_innodb.result: Added begin...commit to speed up test. mysql-test/suite/parts/r/part_supported_sql_func_myisam.result: Added begin...commit to speed up test. mysql-test/suite/parts/r/rpl_partition.result: Added begin...commit to speed up test. mysql-test/suite/parts/t/part_supported_sql_func_innodb.test: Removed duplicated --big_test mysql-test/suite/parts/t/rpl_partition.test: Added begin...commit to speed up test. mysql-test/suite/pbxt/r/cast.result: Updated results after better cast warnings mysql-test/suite/pbxt/r/func_str.result: Updated results after better cast warnings mysql-test/suite/pbxt/r/type_newdecimal.result: Updated results after better cast warnings mysql-test/suite/rpl/r/rpl_innodb_bug28430.result: Added begin...commit to speed up test. mysql-test/suite/rpl/t/rpl_innodb_bug28430.test: Added begin...commit to speed up test. mysql-test/suite/vcol/r/vcol_supported_sql_funcs_innodb.result: More warnings mysql-test/suite/vcol/r/vcol_supported_sql_funcs_myisam.result: More warnings mysql-test/t/cast.test: A lot of new cast() tests mysql-test/t/strict.test: Added new test mysys/CMakeLists.txt: Added ma_dyncol.c mysys/Makefile.am: Added ma_dyncol.c mysys/string.c: Added dynstr_reassociate() to move a buffer from dynamic_strings to some other allocator sql-common/my_time.c: Added 'fuzzydate' flag to str_to_time() Added support for microseconds to my_time_to_str() and my_datetime_to_str() Reset second_parts in number_to_datetime() Added double_to_datetime() sql/field.cc: Added double_to_longlong() and truncate_double() to simplify and reuse code sql/field.h: New prototypes sql/item.cc: Changed Item::get_date(MYSQL_TIME *ltime,uint fuzzydate) to be aware of type of argument. (Needed to make it microsecond safe and get better warnings). Updated call to str_to_time_with_warn() sql/item.h: Added struct st_dyncall_create_def used by dynamic columns Added virtual bool dynamic_result() to tell if type of argument may change over calls. sql/item_cmpfunc.cc: Added Item_func_dyncol_exists() sql/item_cmpfunc.h: Added class Item_func_dyncol_exists sql/item_create.cc: Added get_length_and_scale() to simplify other functions Simplified and extended create_func_cast() Added support for cast(X as double(X,Y)) Added functions to create dynamic column functions. sql/item_create.h: Added prototypes sql/item_func.cc: Extended cast functions Item_func_signed() and Item_func_unsigned() to work with dynamic types Added Item_double_typecast() sql/item_func.h: Added class Item_double_typecast() sql/item_strfunc.cc: Added functions for COLUMN_CREATE(), COLUMN_ADD(), COLUMN_GET() and COLUMN_LIST() sql/item_strfunc.h: Added classes for COLUMN_CREATE(), COLUMN_ADD(), COLUMN_GET() and COLUMN_LIST() sql/item_timefunc.cc: Added flag argument to str_to_time_with_warn() Updated Item_char_typecast() to handle result type that may change between calls (for dynamic columns) Added Item_time_typecast::get_date() to ensure that we cast a datetime to time properly. sql/item_timefunc.h: Added get_date() to Item_time_typecast() to allow proper results for casting time to datetime sql/lex.h: Added new SQL function names sql/my_decimal.cc: Added 'const' to some arguments. Better error message in case of errors (we now print out the wrong value) Added my_decimal2int() sql/my_decimal.h: Moved some constants to my_decimal_limits.h Updated prototypes. Made my_decimal2int() a function as it's rather long (no reason to have it inline) Added decimal2my_decimal() function. sql/mysql_priv.h: Prototypes for new functions sql/share/errmsg.txt: New error messages for wrong casts and dynamic columns sql/sql_acl.cc: Fixed indentation sql/sql_base.cc: Added dynamic_column_error_message() sql/sql_string.h: Added reassociate() to move a buffer to be owned by String object. sql/sql_yacc.yy: Added syntax for COLUMN_ functions. sql/time.cc: Updated str_to_datetime_with_warn() flag argument to same type as other functions Added conversion flag to str_to_time_with_warn() (Similar to all datetime functions) Added conversion functions with warnings: double_to_datetime_with_warn() and decimal_to_datetime_with_warn() strings/decimal.c: Added 'const' to arguments for some functions. unittest/mysys/Makefile.am: Added test for dynamic columns code	15 years ago
Vladislav Vaintroub	ba87d4810a	Fix effect of recent mismerge (it made default pid file name ".pid" instead of "hostname.pid")	15 years ago
unknown	4337aa74e3	MWL#180: Fix bug where setting @@global.binlog_checksum did not actually change the value.	15 years ago
unknown	ee3b7b56e4	Fix LP BUG#772309 Analysis: The method st_select_lex::optimize_unflattened_subqueries() incorrectly propagated to each subquery the complete select_options flag set for the whole query. Among other flags in select_options, this propagated incorrectly the STRAIGHT_JOIN flag from the upper query to the subquery. Solution: During EXPLAIN set only the SELECT_DESCRIBE bit in the select_options of the subquery.	15 years ago
Igor Babaev	20c9084deb	Fixed LP bug #776295 . If the value of the flag cond_false of an Item_equal object is true then the print method must return the string '0'.	15 years ago
Michael Widenius	a3af6f0f3d	Fixed build errors on centos5-amd64-minimal, where we compile with very few character sets Fixed compiler warnings client/readline.cc: Fixed compiler warning mysql-test/suite/innodb/t/innodb_bug60049.test: This test failed when running with --mysqld=--loose-innodb-fast-shutdown=2 which we do on some machines mysql-test/t/mysqldump.test: Only run test if utf8 is used sql/log.cc: Fixed compiler warning sql/mysql_priv.h: Fixed compiler warnings tests/mysql_client_test.c: Don't abort test if ucs2 is not in use.	15 years ago
Michael Widenius	3c9ae014ca	Fixed build errors on centos5-amd64-minimal, where we compile with very few character sets Fixed compiler warnings client/readline.cc: Fixed compiler warning mysql-test/t/mysqldump.test: Only run test if utf8 is used sql/log.cc: Fixed compiler warning sql/mysql_priv.h: Fixed compiler warnings tests/mysql_client_test.c: Don't abort test if ucs2 is not in use.	15 years ago
Igor Babaev	e3e2358fd2	Fixed LP bug #751350 . The third parameter in the call of make_cond_for_table() that built the pushed condition containing only outer references was incorrect. This condition appeared for the first time in the patch fixing bug 729039.	15 years ago
Oleksandr Byelkin	7b797fe66d	Moving max/min optimization from prepare to optimization phase. MWL#148 mysql-test/r/explain.result: fixed results (new item) mysql-test/r/subselect.result: fixed results (new item) mysql-test/r/subselect_no_mat.result: fixed results (new item) mysql-test/r/subselect_no_opts.result: fixed results (new item) mysql-test/r/subselect_no_semijoin.result: Fixed results (new item) mysql-test/suite/pbxt/r/subselect.result: Fixed results (new item) mysql-test/t/explain.test: Fixed results (correct behaviour) sql/item_cmpfunc.cc: Pass through for max/min sql/item_subselect.cc: moving max/min sql/item_subselect.h: moving max/min sql/mysql_priv.h: new uncacheble flags added sql/opt_subselect.cc: maxmin moved. sql/opt_subselect.h: New function for maxmin. sql/sql_class.h: debug code sql/sql_lex.cc: Fixed flags. Limit setting fixed. sql/sql_lex.h: 2 new flags. sql/sql_select.cc: Prepare divided on 2 function to be able recollect some info after transformation. sql/sql_select.h: Prepare divided on 2 functions.	15 years ago
Vladislav Vaintroub	e4732a765e	fix noisy warnings in header files	15 years ago
Igor Babaev	aaf9fb0de7	Fixed LP bug #776274 , The bug was introduced by the patch that fixed bug 717577.	15 years ago
unknown	014b8e7f43	Backport MySQL WL#2540 into MariaDB. Patch backported: bzr diff '-rrevid:alfranio.correia@oracle.com-20101121143257-se3vpqus73l4mum0 ..revid:luis.soares@oracle.com-20101124111752-9b8260bd1qak87hr' --old=lp:mysql-server --new=lp:mysql-server	15 years ago
Sergey Petrunya	ea43df7685	- Release build: Fix compiler warning about unused variable - Debug build: make DBUG_ASSERT statements really look at the first table One can't expect cursors to work with semi-join subqueries anyway, though (which isn't a problem because cursors are not used anywhere)	15 years ago
Michael Widenius	046418ad95	Added calls to cleanup_mutexes() for embedded library.	15 years ago
Michael Widenius	2721e912ba	Added ALTER ONLINE TABLE, which will give an error if the change can't be done 'instantly' (without a table copy) mysql-test/r/alter_table_online.result: Test new feature mysql-test/t/alter_table_online.test: Test new feature sql/handler.cc: Added comment sql/lex.h: Added ONLINE keyword sql/mysql_priv.h: Added option to alter table to require online operation sql/share/errmsg.txt: Added error message if ONLINE can't be done sql/sql_lex.h: Added online option sql/sql_parse.cc: Added online option to mysql_alter_table() sql/sql_table.cc: Added test that gives error if table can't be done instantly when requsted to be online. Fixed wrong test if table includes a VARCHAR Fixed wrong (but unlikely) handling of error conditions in ALTER table sql/sql_yacc.yy: Added ALTER ONLINE TABLE syntax storage/maria/ha_maria.cc: Fixed bug where 'start_bulk_insert' used too small buffer if used with unknown number of rows	15 years ago
Michael Widenius	6da8ac5f71	Added option "AND DISABLE CHECKPOINT" to "FLUSH TABLES WITH READ LOCK" This makes it possible to do safe multi volume snapshots as long as one snapshots the volume with the transaction logs last. include/mysql_com.h: Added REFRESH_CHECKPOINT mysql-test/r/flush.result: Added test of new FLUSH TABLES syntax + calls to checkpoint_status handler calls mysql-test/t/flush.test: Added test of new FLUSH TABLES syntax + calls to checkpoint_status handler calls sql/handler.cc: Added code to call checkpoint_state for all handlertons that supports it sql/handler.h: Added new checkpoint_state() handlerton call to temporarly disable checkpoints. sql/lex.h: Added CHECKPOINT keyword sql/sql_yacc.yy: Added support for FLUSH TABLES WITH READ LOCK AND DISABLE CHECKPOINT storage/maria/ha_maria.cc: Added handlerton call to disable checkpoints. storage/maria/ma_checkpoint.c: Don't do checkpoint if checkpoints are disabled. storage/maria/ma_static.c: Added maria_checkpoint_disabled storage/maria/maria_def.h: Added maria_checkpoint_disabled storage/xtradb/handler/ha_innodb.cc: Added handlerton call to disable checkpoints. storage/xtradb/include/log0log.h: Added option to log_checkpoint() to allow one to ignore not critical checkpoints during the time checkpoints are disabled. storage/xtradb/log/log0log.c: Added code to allow one to disable checkpoints during a FLUSH TABLES ... DISABLE CHECKPOINT This was done by adding a new argument to log_checkpoint() which tells us when the checkpoint is called by srv_master_thread (which are safe to ignore) storage/xtradb/srv/srv0srv.c: Tell log_checkpoint() that checkpoints from srv_master_thread() are safe to ignore (will just delay recovery time a bit).	15 years ago
unknown	0f4236659c	Fix LP BUG#718593 Analysis: Build_equal_items_for_cond() rewrites the WHERE clause in such a way, that it may merge the list join->cond_equal->current_level with the list of child Items in an AND condition of the WHERE clause. The place where this is done is: static COND build_equal_items_for_cond(THD thd, COND cond, COND_EQUAL inherited) { ... if (and_level) { args->concat(&eq_list); args->concat((List<Item> *)&cond_equal.current_level); } ... } As a result, later transformations on the WHERE clause may change the structure of the list join->cond_equal->current_level without knowing this. Specifically in this bug, Item_in_subselect::inject_in_to_exists_cond creates a new AND of the old WHERE clause and the IN->EXISTS conditions. It then calls fix_fields() for the new AND. Among other things, fix_fields flattens all nested ANDs into one by merging the AND argument lists. When there is a cond_equal for the JOIN, its list of Item_equal objects is attached to the end of the original AND. When a lower-level AND is merged into the top-level one, the argument list of the lower-level AND is concatenated to the list of multiple equalities in the upper-level AND. As a result, when substitute_for_best_equal_field processes the multiple equalities, it turns out that the multiple equality list contains the Items from the lower-level AND which were concatenated to the end of the join->cond_equal->current_level list. This results in a crash because this list must not contain any other Items except for the previously found Item_equal ones. Solution: When performing IN->EXIST predicate injection, and the where clause is an AND, detach the list of Item_equal objects before calling fix_fields on the injected where clause. After fix_fields is done, reattach back the multiple equalities list to the end of the argument list of the new AND.	15 years ago
Igor Babaev	1556a136ac	Fixed LP bug #754521 . The function test_quick_select by mistake did not update the value of table->quick_condition_rows for index intersection scans though the specification explicitly required to do so from any table access plan once the plan provided a better upper bound for the number of rows selected from the table. It resulted in a bogus, usually very big number saved as the cost of the table access. This, in its turn, in many cases forced the optimizer to make a bad choice of the execution plan for join queries.	15 years ago
Sergey Glukhov	a60c39a2ff	Bug#11889186 60503: CRASH IN MAKE_DATE_TIME WITH DATE_FORMAT / STR_TO_DATE COMBINATION calc_daynr() function returns negative result if malformed date with zero year and month is used. Attempt to calculate week day on negative value leads to crash. The fix is return NULL for 'W', 'a', 'w' specifiers if zero year and month is used. Additional fix for calc_daynr(): --added assertion that result can not be negative --return 0 if zero year and month is used mysql-test/r/func_time.result: test case mysql-test/t/func_time.test: test case sql-common/my_time.c: --added assertion that result can not be negative --return 0 if zero year and month is used sql/item_timefunc.cc: eturn NULL for 'W', 'a', 'w' specifiers if zero year and month is used.	15 years ago
Igor Babaev	8d9dd21d85	Fixed LP bugs #717577 , #724942 . Both these two bugs happened due to the following problem. When a view column is referenced in the query an Item_direct_view_ref object is created that is refers to the Item_field for the column. All references to the same view column refer to the same Item_field. Different references can belong to different AND/OR levels and, as a result, can be included in different Item_equal object. These Item_equal objects may include different constant objects. If these constant objects are substituted for the Item_field created for a view column we have a conflict situation when the second substitution annuls the first substitution. This leads to wrong result sets returned by the query. Bug #724942 demonstrates such an erroneous behaviour. Test case of the bug #717577 produces wrong result sets because best equal fields of the multiple equalities built for different OR levels of the WHERE condition differs. The subsitution for the best equal field in the second OR branch overwrites the the substitution made for the first branch. To avoid such conflicts we have to substitute for the references to the view columns rather than for the underlying field items. To make such substitutions possible we have to include into multiple equalities references to view columns rather than field items created for such columns. This patch modifies the Item_equal class to include references to view columns into multiple equality objects. It also performs a clean up of the class methods and adds more comments. The methods of the Item_direct_view_ref class that assist substitutions for references to view columns has been also added by this patch.	15 years ago
Mattias Jonsson	bdaaee5d04	post fix for werror build for bug#11766249.	15 years ago
Sergey Glukhov	a5e8d9029b	Bug#11756928 48916: SERVER INCORRECTLY PROCESSING HAVING CLAUSES WITH AN ORDER BY CLAUSE Before sorting HAVING condition is split into two parts, first part is a table related condition and the rest of is HAVING part. Extraction of HAVING part does not take into account the fact that some of conditions might be non-const but have 'used_tables' == 0 (independent subqueries) and because of that these conditions are cut off by make_cond_for_table() function. The fix is to use (table_map) 0 instead of used_tables in third argument for make_cond_for_table() function. It allows to extract elements which belong to sorted table and in addition elements which are independend subqueries. mysql-test/r/having.result: test case mysql-test/t/having.test: test case sql/sql_select.cc: The fix is to use (table_map) 0 instead of used_tables in third argument for make_cond_for_table() function. It allows to extract elements which belong to sorted table and in addition elements which are independend subqueries.	15 years ago
Igor Babaev	79439d9a74	Fixed LP bug #752353 . In some cases the field max_part_no of the SEL_ARG structure was not initialized. That triggered a Valgrind complain.	15 years ago
Mattias Jonsson	bd92ea4311	Bug#11766249 bug#59316: PARTITIONING AND INDEX_MERGE MEMORY LEAK Update for previous patch according to reviewers comments. Updated the constructors for ha_partitions to use the common init_handler_variables functions Added use of defines for size and offset to get better readability for the code that reads and writes the .par file. Also refactored the get_from_handler_file function.	15 years ago
unknown	43acceeb47	Fix LP BUG#715069 Analysis: The wrong result is a consquence of sorting the subquery result and then selecting only the first row due to the artificial LIMIT 1 introduced by the fix_fields phase. Normally, if there is an ORDER BY in a subquery, the ORDER is removed (Item_in_subselect::select_in_like_transformer), however if a GROUP BY is transformed into ORDER, this happens later, after the removal of the ORDER clause of subqueries, so we end up with a subquery with an ORDER clause, and an artificially added LIMIT 1. The reason why the same works in the main 5.3 without MWL#89, is that the 5.3 performs all subquery transformations, including IN->EXISTS before JOIN::optimize(). The beginning of JOIN::optimize does: if (having \|\| (select_options & OPTION_FOUND_ROWS)) select_limit= HA_POS_ERROR; which sets the limit back to infinity, thus 5.3 sorts the whole subquery result, and IN performs the lookup into all subquery result rows. Solution: Sorting of subqueries without LIMIT is meaningless. Since LIMIT in subqueries is not supported, the patch removes sorting by setting join->skip_sort_order= true for each subquery JOIN object. This improves a number of execution plans to not perform unnecessary sorting at all.	15 years ago
Jon Olav Hauglid	f3b024cafa	BUG#12377872 ASSERTION FAILED: !_ENTERED WHEN GETHOSTBYADDR_R FAILS ON SOLARIS This assertion was triggered if gethostbyaddr_r cannot do a reverse lookup on an ip address. The reason was a missing DBUG_RETURN macro. The problem affected only debug versions of the server. This patch fixes the problem by replacing return with DBUG_RETURN. No test case added.	15 years ago
Sergey Glukhov	90bbf9d615	Bug#11765923 58937: MANY VALGRIND ERRORS AFTER GROUPING BY RESULT OF DECIMAL COLUMN FUNCTION Bug#11764671 57533: UNINITIALISED VALUES IN COPY_AND_CONVERT (SQL_STRING.CC) WITH CERTAIN CHA When ROUND evaluates decimal result it uses Item::decimal value as fraction value for the result. In some cases Item::decimal is greater than real result fraction value and uninitialised memory of result(decimal) buffer can be used in further calculations. Issue is introduced by Bug33143 fix. The fix is to remove erroneous assignment. mysql-test/r/func_math.result: test case mysql-test/t/func_math.test: test case sql/item_func.cc: remove erroneous assignment	15 years ago
Sergei Golubchik	a7ff7918a0	lp:750117 Bogus warning with aggregate and datetime column implement Item_cache_int::getdate() and Item_cache_int::save_in_field() that handle the case of the cached packed datetime value.	15 years ago
Sergey Glukhov	bba7b9ca0c	Bug#11765139 58069: LOAD DATA INFILE: VALGRIND REPORTS INVALID MEMORY READS AND WRITES WITH U Some multibyte sequences could be considered by my_mbcharlen() functions as multibyte character but more exact my_ismbchar() does not think so. In such a case this multibyte sequences is pushed into 'stack' buffer which is too small to accommodate the sequence. The fix is to allocate stack buffer in compliance with max character length. mysql-test/r/loaddata.result: test case mysql-test/t/loaddata.test: test case sql/sql_load.cc: allocate stack buffer in compliance with max character length.	15 years ago
Tor Didriksen	dd3d9477b2	Bug#11765713 58705: OPTIMIZER LET ENGINE DEPEND ON UNINITIALIZED VALUES CREATED BY OPT_SUM_QU Valgrind warnings were caused by comparing index values to an un-initialized field. mysql-test/r/subselect.result: New test cases. mysql-test/t/subselect.test: New test cases. sql/opt_sum.cc: Add thd to opt_sum_query enabling it to test for errors. If we have a non-nullable index, we cannot use it to match null values, since set_null() will be ignored, and we might compare uninitialized data. sql/sql_select.cc: Add thd to opt_sum_query, enabling it to test for errors. sql/sql_select.h: Add thd to opt_sum_query, enabling it to test for errors.	15 years ago
Sergey Glukhov	3abe56f31d	Bug#11756242 48137: PROCEDURE ANALYSE() LEAKS MEMORY WHEN RETURNING NULL There are two problems with ANALYSE(): 1. Memory leak it happens because do_select() can overwrite JOIN::procedure field(with zero value in our case) and JOIN destructor don't free the memory allocated for JOIN::procedure. The fix is to save original JOIN::procedure before do_select() call and restore it after do_select execution. 2. Wrong result If ANALYSE() procedure is used for the statement with LIMIT clause it could retrun empty result set. It happens because of missing analyse::end_of_records() call. First end_send() function call returns NESTED_LOOP_QUERY_LIMIT and second call of end_send() with end_of_records flag enabled does not happen. The fix is to return NESTED_LOOP_OK from end_send() if procedure is active. mysql-test/r/analyse.result: test case mysql-test/t/analyse.test: test case sql/sql_select.cc: --save original JOIN::procedure before do_select() call and restore it after do_select execution. --return NESTED_LOOP_OK from end_send() if procedure is active	15 years ago
Sergey Glukhov	7fa7a0cad9	Bug#11766270 59343: YEAR(4): INCORRECT RESULT AND VALGRIND WARNINGS WITH MIN/MAX, UNION When we create temporary result table for UNION incorrect max_length for YEAR field is used and it leads to incorrect field value and incorrect result string length as YEAR field value calculation depends on field length. The fix is to use underlying item max_length for Item_sum_hybrid::max_length intialization. mysql-test/r/func_group.result: test case mysql-test/t/func_group.test: test case sql/field.cc: added assert sql/item_sum.cc: init Item_sum_hybrid::max_length with use underlying item max_length for INT result type.	15 years ago

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28061 Commits (0a12fa292221ed9cf1c58e924682a8d49c6059b8)